A porous mold core structure and device for supercritical fluid foaming of recycled plastics

Abstract

The application discloses a kind of porous mould core structure and device for regenerative plastic supercritical fluid foaming, belong to foaming mould technical field, including upper mould and lower mould, the upper mould and lower mould are respectively installed in drive frame, the lower mould one side is equipped with injection hole, still include positioning rod and knocking device;In the application, convex block is rotated and contacted to contact plate by motor, contact plate is extruded by the protruding portion of convex block, so that contact plate moves to one side, then contact plate drives second knock plate to move by connecting frame and sliding plate, second knock plate drives first knock plate to move by stroke rod, when convex block is separated from contact plate, second knock plate is reset by the rebound force of first spring and knocks, so that foaming fluid flows in upper mould and lower mould due to vibration, avoid the finished product angle defect affecting product quality due to the fact that foaming fluid cannot fully flow due to viscosity.

Description

Technical Field

[0001] This invention belongs to the field of foaming mold technology, and particularly relates to a porous mold core structure and device for supercritical fluid foaming of recycled plastics. Background Technology

[0002] Supercritical fluid foaming of recycled plastics refers to a technology that uses recycled plastics as a base material and supercritical carbon dioxide or nitrogen as a physical foaming agent. Through high-pressure dissolution and rapid decompression nucleation, lightweight high-performance materials with micron-scale pore structures are prepared. Appropriate molds are required during the preparation process.

[0003] However, in actual use, traditional foaming molds suffer from defects due to the inherent viscosity of the foaming fluid, which prevents the foaming fluid from flowing fully within the mold. This results in missing corners in the finished product, affecting subsequent processing. Therefore, there is an urgent need for a porous mold core structure and device for supercritical fluid foaming of recycled plastics to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that the foaming fluid cannot flow sufficiently within the mold, resulting in missing corners in the finished product and affecting its quality. Therefore, this invention proposes a porous mold core structure and device for supercritical fluid foaming of recycled plastics.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a porous mold core structure and device for supercritical fluid foaming of recycled plastics, comprising an upper mold and a lower mold, wherein the upper mold and the lower mold are respectively installed in a drive frame, and the lower mold is provided with an injection hole on one side, and further comprising: Positioning rods, the tops of which are connected to the bottom of the upper mold, and the top of the lower mold is provided with positioning grooves, the positioning grooves corresponding to the positions of the positioning rods; The striking device is installed on the lower mold. The striking device also includes a mounting plate. One side of the mounting plate is connected to one side of the lower mold, and a motor is fixedly installed on the top of the mounting plate. The output shaft of the motor is driven by two second striking plates and two first striking plates. The first striking plates and the second striking plates are driven by the motor to strike and generate vibration.

[0006] As a further description of the above technical solution: The striking device also includes: The annular groove is formed inside the lower mold, and the outer walls of the first and second striking plates are both attached to and slidably connected to the inner wall of the annular groove. The two sliding grooves are respectively formed on both sides of the inner wall of the annular groove; The stroke grooves are respectively formed in the corresponding first striking plate; The stroke rods are connected at one end to the bottom of the corresponding second striking plate, and the outer wall of the stroke rod is slidably connected to the inner wall of the stroke groove.

[0007] As a further description of the above technical solution: The striking device also includes: The allowance grooves are respectively opened on one side of the second striking plate, and a fixing groove is opened on one side of the allowance grooves. The fixing rods are slidably connected to the inner wall of the fixing groove on their outer walls, and the other end of the fixing rods is connected to one side of the inner wall of the annular groove. The first spring, and multiple first springs are sleeved on the outside of the corresponding fixed rods, with the two ends of the first springs respectively connected to one side of the allowance groove and one side of the inner wall of the annular groove.

[0008] As a further description of the above technical solution: The striking device also includes: The sliding plates are connected on one side to the corresponding second striking plate, and the outer wall of the sliding plates is slidably connected to the inner wall of the corresponding sliding groove. The connecting frame has one side connected to the corresponding sliding plate, and the other side of the connecting frame is connected to a contact plate. A protrusion is provided between the two contact plates, and one side of the protrusion is connected to the motor output shaft.

[0009] As a further description of the above technical solution: The lower mold is provided with a sealing device at its top, and the sealing device further includes: A sealing groove is provided on the top of the lower mold, and the inner wall of the sealing groove is provided with multiple side grooves, and both sides of the inner wall of the side grooves are provided with sliding grooves. The sealing ring has its outer wall in contact with and slidably connected to the inner wall of the sealing groove, and the bottom of the sealing ring has multiple bottom grooves, with rotating grooves on both sides of the inner wall of the bottom grooves.

[0010] As a further description of the above technical solution: The sealing device further includes: Top blocks, and hinge blocks are connected to the bottom of multiple top blocks; A hinge plate, wherein the top of a plurality of hinge plates is hinged to one side of a corresponding hinge block, and both sides of the hinge plate are connected to sliders, the outer wall of the sliders being slidably connected to the inner wall of the corresponding slide groove, and both sides of the hinge plate are connected to rotating blocks, the outer wall of the rotating blocks being rotatably connected to the inner wall of the corresponding rotating groove.

[0011] As a further description of the above technical solution: A material handling device is installed inside the lower mold, and the material handling device includes: An internal groove is provided, which is located inside the lower mold, and a sliding hole is provided on one side of the inner wall of the internal groove. An inclined block, one side of which is connected to a connecting rod, the outer wall of which is slidably connected to the inner wall of a sliding hole; The transmission frame has one end of the connecting rod connected to one side of the transmission frame, the bottom of the transmission frame is in contact with and slidably connected to the bottom of the inner wall of the built-in groove, and transmission grooves are provided on both sides of the inner wall of the transmission frame. A connecting rod, one end of which is connected to one side of the upper mold, and a through groove is provided inside the connecting rod, with an extrusion block rotatably connected to the inner wall of the through groove.

[0012] As a further description of the above technical solution: The material handling device further includes: The transmission blocks, wherein the outer walls of the plurality of transmission blocks are slidably connected to the inner walls of the corresponding transmission grooves; Support plates, the outer walls of multiple support plates are slidably connected to the inner wall of the transmission frame, and one side of the support plate is connected to one side of the corresponding transmission block; Support rods, the bottom of which are connected to the top of corresponding support plates, and the top of the support rods are connected to a stop plate.

[0013] As a further description of the above technical solution: The material handling device further includes: Embedding grooves, a plurality of said embedding grooves are formed at the bottom of the inner wall of the lower mold, and the outer wall of the abutment plate is in contact with the inner wall of the embedding groove; The connecting grooves are formed at the bottom of the embedded groove, and the other side of the connecting groove is connected to one side of the built-in groove, and the inner wall of the connecting groove is slidably connected to the outer wall of the support rod.

[0014] As a further description of the above technical solution: The material handling device further includes: Sliding sleeve seats, the two sliding sleeve seats are respectively connected to both sides of the transmission frame; The two slide rods are slidably connected to the inner walls of the corresponding sliding sleeve seats, and the two ends of the slide rods are respectively connected to one side of the inner wall of the built-in groove. The outer walls of the slide rods are fitted with second springs, and the two ends of the second springs are respectively connected to one side of the sliding sleeve seat and one side of the inner wall of the built-in groove.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, by setting a striking device, the protrusion is driven by a motor to rotate and contact the contact plate. The protrusion of the protrusion squeezes the contact plate, causing the contact plate to move to one side. Then, the contact plate drives the second striking plate to move through the connecting frame and the sliding plate. The second striking plate drives the first striking plate to move through the stroke rod. When the protrusion separates from the contact plate, the second striking plate is reset by the rebound force of the first spring and strikes, so that the foaming fluid flows fully in the upper and lower molds due to vibration, avoiding the foaming fluid from being unable to flow fully due to viscosity, which would cause the finished product to have missing corners and affect the quality of the finished product.

[0016] 2. In this invention, by setting a sealing device, the top block is squeezed by the upper mold, causing the top block to drive the hinge plate to rotate around the slider through the hinge block. Therefore, the other side of the hinge plate drives the sealing ring to move upward, so that the sealing ring is tightly fitted with the bottom of the upper mold, thereby sealing the gap between the upper mold and the lower mold, thereby improving the airtightness and preventing the raw material from flowing out of the gap and causing waste.

[0017] 3. In this invention, by setting up a material handling device, the connecting rod moves when the upper mold moves upward. The connecting rod squeezes one side of the inclined block through the extrusion block in the through groove, and the inclined block moves to one side through continuous extrusion. Therefore, the transmission frame moves through the connecting rod. The transmission frame moves the transmission block upward through the transmission groove. The transmission block moves the support rod upward through the support plate. Therefore, the finished product is ejected when the support plate moves, so that the outer wall of the finished product is separated from the inner wall of the lower mold, which facilitates the subsequent material handling operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure proposed in this invention; Figure 2 This is a schematic diagram of the other side of the three-dimensional structure proposed in this invention; Figure 3 This is a schematic diagram of the separation structure proposed in this invention; Figure 4 This is a schematic diagram of the striking device structure proposed in this invention; Figure 5 The present invention proposes Figure 4 Enlarged structural diagram of section A; Figure 6 This is a schematic diagram of the sealing device structure proposed in this invention; Figure 7 The present invention proposes Figure 6 Enlarged structural diagram of section B; Figure 8 This is a schematic diagram of the material handling device proposed in this invention; Figure 9 The present invention proposes Figure 8 Enlarged structural diagram of section C; Figure 10 The present invention proposes Figure 8 Enlarged structural diagram of section D in the middle; Figure 11 The present invention proposes Figure 8 Enlarged structural diagram of section E in the middle.

[0019] Legend: 1. Upper mold; 2. Lower mold; 3. Injection hole; 4. Positioning rod; 5. Positioning groove; 6. Striking device; 601. Motor; 602. Mounting plate; 603. Protrusion; 604. Connecting frame; 605. Contact plate; 606. Sliding plate; 607. Sliding groove; 608. Ring groove; 609. First striking plate; 610. Second striking plate; 611. Stroke groove; 612. Stroke rod; 613. Fixing rod; 614. First spring; 615. Allowance groove; 7. Sealing device; 701. Sealing ring; 702. Sealing groove; 703. Rotating groove; 704. Bottom groove 705. Top block; 706. Slider; 707. Hinge plate; 708. Hinge block; 709. Slide groove; 710. Side groove; 711. Rotating block; 8. Material handling device; 801. Connecting rod; 802. Support plate; 803. Through groove; 804. Extrusion block; 805. Inclined block; 806. Connecting rod; 807. Sliding hole; 808. Support rod; 809. Embedded groove; 810. Connecting groove; 811. Support plate; 812. Transmission block; 813. Transmission frame; 814. Transmission groove; 815. Internal groove; 816. Sliding sleeve seat; 817. Sliding rod; 818. Second spring. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-5This invention provides a technical solution: a porous mold core structure and device for supercritical fluid foaming of recycled plastics, including an upper mold 1 and a lower mold 2, which are respectively installed in a drive frame. The lower mold 2 has an injection hole 3 on one side, and also includes positioning rods 4 and a striking device 6. The tops of multiple positioning rods 4 are connected to the bottom of the upper mold 1, and the top of the lower mold 2 has a positioning groove 5, which corresponds to the position of the positioning rods 4. The striking device 6 is installed on the lower mold 2, and the striking device 6 also includes a mounting plate 602. One side of the mounting plate 602 is connected to one side of the lower mold 2, and a motor 601 is fixedly installed on the top of the mounting plate 602. The output shaft of the motor 601 drives two second striking plates 610 and two first striking plates 609. The motor 601 drives the first striking plates 609 and the second striking plates 610 to strike and generate vibration.

[0022] Furthermore, the striking device 6 also includes an annular groove 608, a sliding groove 607, a stroke rod 612, and a stroke groove 611. The annular groove 608 is formed inside the lower mold 2, and the outer walls of the first striking plate 609 and the second striking plate 610 are both attached to and slidably connected to the inner wall of the annular groove 608. The two sliding grooves 607 are respectively formed on both sides of the inner wall of the annular groove 608. The multiple stroke grooves 611 are respectively formed in the corresponding first striking plate 609. One end of the multiple stroke rods 612 is connected to the bottom of the corresponding second striking plate 610, and the outer wall of the stroke rod 612 is slidably connected to the inner wall of the stroke groove 611.

[0023] Furthermore, the striking device 6 also includes a margin groove 615, a fixing rod 613, and a first spring 614. Multiple margin grooves 615 are respectively opened on one side of the second striking plate 610, and a fixing groove is opened on one side of the margin groove 615. The outer wall of multiple fixing rods 613 is slidably connected to the inner wall of the fixing groove, and the other end of the fixing rod 613 is connected to one side of the inner wall of the annular groove 608. Multiple first springs 614 are sleeved on the corresponding fixing rods 613, and the two ends of the first springs 614 are respectively connected to one side of the margin groove 615 and one side of the inner wall of the annular groove 608.

[0024] Furthermore, the striking device 6 also includes a sliding plate 606 and a connecting frame 604. One side of each of the two sliding plates 606 is connected to one side of the corresponding second striking plate 610, and the outer wall of the sliding plate 606 is slidably connected to the inner wall of the corresponding sliding groove 607. One side of each of the two connecting frames 604 is connected to one side of the corresponding sliding plate 606, and the other side of the connecting frame 604 is connected to a contact plate 605. A protrusion 603 is provided between the two contact plates 605, and one side of the protrusion 603 is connected to the output shaft of the motor 601.

[0025] The specific implementation method is as follows: By setting up a striking device 6, the output shaft of the motor 601 drives the protrusion 603 to rotate, so that the protrusion of the cam contacts the contact plate 605. Therefore, the protrusion of the protrusion 603 presses the contact plate 605, causing the contact plate 605 to move to one side. Subsequently, the contact plate 605 drives the connecting frame 604 to move, the connecting frame 604 drives the sliding plate 606 to move, and the sliding plate 606 drives the second striking plate 610 to move. When the second striking plate 610 moves, it presses the first spring 614, forcing the first spring 614 to generate a rebound force. And the first spring 614 is further restrained by the fixing rod 613. The first spring 614 is supported to prevent it from bending during compression, which would affect its rebound effect. Then, the second striking plate 610 moves to drive the stroke rod 612. The stroke rod 612 slides in the stroke groove 611, causing the first striking plate 609 to move. When the protrusion 603 separates from the contact plate 605, the second striking plate 610 is reset by the rebound force of the first spring 614 and strikes, so that the foaming fluid flows fully in the upper mold 1 and lower mold 2 due to vibration. This prevents the foaming fluid from being unable to flow fully due to viscosity, which would cause the finished product to have missing corners and affect the quality of the finished product.

[0026] Please see Figures 6-7 The lower mold 2 is provided with a sealing device 7 at its top. The sealing device 7 also includes a sealing groove 702 and a sealing ring 701. The sealing groove 702 is located at the top of the lower mold 2, and the inner wall of the sealing groove 702 is provided with multiple side grooves 710. The inner walls of the side grooves 710 are provided with sliding grooves 709 on both sides. The outer wall of the sealing ring 701 is attached to and slidably connected to the inner wall of the sealing groove 702. The bottom of the sealing ring 701 is provided with multiple bottom grooves 704, and the inner walls of the bottom grooves 704 are provided with rotating grooves 703 on both sides.

[0027] Furthermore, the sealing device 7 also includes a top block 705 and a hinge plate 707. The bottom of the multiple top blocks 705 is connected to a hinge block 708. The top of the multiple hinge plates 707 is hinged to one side of the corresponding hinge block 708. Both sides of the hinge plate 707 are connected to sliders 706. The outer wall of the slider 706 is slidably connected to the inner wall of the corresponding groove 709. Both sides of the hinge plate 707 are connected to rotating blocks 711. The outer wall of the rotating block 711 is rotatably connected to the inner wall of the corresponding rotating groove 703.

[0028] The specific implementation method is as follows: By setting a sealing device 7, the upper mold 1 presses the top block 705, causing the top block 705 to move downward under force, thus driving the hinge block 708 to move. The hinge block 708 drives one side of the hinge plate 707 to move. As the hinge plate 707 rotates around the slider 706, the other side of the hinge plate 707 moves in the opposite direction, thereby causing the hinge plate 707 to drive the rotating block 711 to move. The rotating block 711 drives the sealing ring 701 to move upward, so that the sealing ring 701 fits tightly with the bottom of the upper mold 1, thereby sealing the gap between the upper mold 1 and the lower mold 2, thereby improving the airtightness and preventing the raw material from flowing out of the gap and causing waste. By setting the hinge plate 707 to have a certain degree of toughness, the hinge plate 707 has a certain bending stroke, avoiding the rigid support of the hinge plate 707 that would prevent the upper mold 1 and the lower mold 2 from not fitting fully, thus ensuring the normal operation of the device.

[0029] Please see Figures 8-11 The lower mold 2 is equipped with a material handling device 8, which includes an internal groove 815, an inclined block 805, a transmission frame 813, and a connecting rod 801. The internal groove 815 is located inside the lower mold 2, and a sliding hole 807 is provided on one side of the inner wall of the internal groove 815. A connecting rod 806 is connected to one side of the inclined block 805. The outer wall of the connecting rod 806 is slidably connected to the inner wall of the sliding hole 807. One end of the connecting rod 806 is connected to one side of the transmission frame 813. The bottom of the transmission frame 813 is in contact with and slidably connected to the bottom of the inner wall of the internal groove 815. Transmission grooves 814 are provided on both sides of the inner wall of the transmission frame 813. One end of the connecting rod 801 is connected to one side of the upper mold 1, and a through groove 803 is provided inside the connecting rod 801. An extrusion block 804 is rotatably connected to the inner wall of the through groove 803.

[0030] Furthermore, the material handling device 8 also includes a transmission block 812, a support plate 811, and a support rod 808. The outer walls of the multiple transmission blocks 812 are slidably connected to the inner walls of the corresponding transmission grooves 814. The outer walls of the multiple support plates 811 are slidably connected to the inner walls of the transmission frame 813, and one side of the support plate 811 is connected to one side of the corresponding transmission block 812. The bottom of the multiple support rods 808 is connected to the top of the corresponding support plate 811, and the top of the support rod 808 is connected to a stop plate 802.

[0031] Furthermore, the material handling device 8 also includes an embedding groove 809 and a connecting groove 810. Multiple embedding grooves 809 are formed at the bottom of the inner wall of the lower mold 2. The outer wall of the abutment plate 802 is in contact with the inner wall of the embedding groove 809. Multiple connecting grooves 810 are formed at the bottom of the embedding groove 809. The other side of the connecting groove 810 is connected to one side of the built-in groove 815. The inner wall of the connecting groove 810 is slidably connected to the outer wall of the support rod 808.

[0032] Furthermore, the material handling device 8 also includes a sliding sleeve seat 816 and a sliding rod 817. The two sliding sleeve seats 816 are respectively connected to both sides of the transmission frame 813. The outer walls of the two sliding rods 817 are slidably connected to the inner walls of the corresponding sliding sleeve seats 816. The two ends of the sliding rods 817 are respectively connected to one side of the inner wall of the built-in groove 815. A second spring 818 is sleeved on the outer wall of the sliding rod 817. The two ends of the second spring 818 are respectively connected to one side of the sliding sleeve seat 816 and one side of the inner wall of the built-in groove 815.

[0033] The specific implementation method is as follows: By setting up the material handling device 8, when the upper mold 1 moves upward, it drives the connecting rod 801 to move. The connecting rod 801 drives the extrusion block 804 to move through the through groove 803, so that the top of the extrusion block 804 extrudes the inclined block 805. Through the inclined surface on one side of the inclined block 805, the extrusion block 804 drives the inclined block 805 to move to one side. Therefore, the inclined block 805 drives the connecting rod 806 to move. The connecting rod 806 drives the transmission frame 813 to move. The transmission frame 813 drives the transmission groove 814 to move. The transmission groove 814 drives the transmission block 812 to move upward. The moving block 812 drives the support plate 811 to move, the support plate 811 drives the support rod 808 to move upward, and the support rod 808 drives the abutment plate 802 to move upward. Therefore, the finished product is ejected when the abutment plate 802 moves, so that the finished product is separated from the lower mold 2, which facilitates the subsequent material handling operation. When the transmission frame 813 moves, it drives the sliding sleeve seat 816 to move, so that the sliding sleeve seat 816 squeezes the second spring 818, which causes the second spring 818 to generate a rebound force. After the material is handled, the transmission frame 813 is reset and moved by the rebound force of the second spring 818, which facilitates the subsequent production of finished products.

[0034] Working principle: During use, the upper mold 1 is moved by the drive device, so that the upper mold 1 and the lower mold 2 are fitted together. When the upper mold 1 moves, it presses the top block 705, so that the top block 705 drives the hinge plate 707 to move through the hinge block 708. The hinge plate 707 rotates around the slider 706, so that the other side of the hinge plate 707 drives the rotating block 711 to move. The rotating block 711 drives the sealing ring 701 to move, so that the top of the sealing ring 701 is tightly fitted with the bottom of the upper mold 1, thus sealing the gap between the upper mold 1 and the lower mold 2. Then, foaming material is injected through the injection hole 3. Then, the motor 601 drives the protrusion 603 to rotate, so that the protrusion 603 presses the contact plate 605 through the protrusion, forcing the contact plate 605 to move to one side. Thus, the contact plate 605 drives the sliding plate 606 to move through the connecting frame 604. The sliding plate 606 drives the second striking plate 610 to move. When the striking plate 610 moves, it compresses the first spring 614, causing the first spring 614 to generate a rebound force. The second striking plate 610 drives the first striking plate 609 to move through the stroke groove 611. When the protrusion 603 separates from the contact plate 605, it is reset by the rebound force of the first spring 614 and strikes, so that the foaming fluid flows fully in the upper mold 1 and the lower mold 2 due to vibration. After injection molding is completed, the upper mold 1 moves, causing the upper mold 1 to drive the extrusion block 804 to move through the connecting rod 801. The extrusion block 804 extrudes the inclined block 805, causing the inclined block 805 to move to one side, thus driving the connecting rod 806 to move. The connecting rod 806 drives the transmission frame 813 to move. The transmission frame 813 drives the transmission movement through the transmission groove 814. The transmission block 812 drives the abutment plate 802 to move through the support plate 811 and the support rod 808, causing the abutment plate 802 to push out the finished product, forcing the outer wall of the finished product to separate from the inner wall of the lower mold 2 for easy material removal.

[0035] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0037] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0038] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A porous mold core structure and device for supercritical fluid foaming of recycled plastics, comprising an upper mold (1) and a lower mold (2), wherein the upper mold (1) and the lower mold (2) are respectively installed in a drive frame, and the lower mold (2) is provided with an injection hole (3) on one side, characterized in that, Also includes: Positioning rods (4), the tops of multiple positioning rods (4) are connected to the bottom of the upper mold (1), and the top of the lower mold (2) is provided with positioning grooves (5), the positioning grooves (5) and the positioning rods (4) are positioned corresponding to each other; A striking device (6) is installed on the lower mold (2). The striking device (6) also includes a mounting plate (602). One side of the mounting plate (602) is connected to one side of the lower mold (2), and a motor (601) is fixedly installed on the top of the mounting plate (602). The output shaft of the motor (601) is driven by two second striking plates (610) and two first striking plates (609). The first striking plates (609) and the second striking plates (610) are driven by the motor (601) to strike and generate vibration.

2. The porous mold core structure and device for supercritical fluid foaming of recycled plastics according to claim 1, characterized in that, The striking device (6) further includes: The annular groove (608) is formed in the lower mold (2), and the outer walls of the first striking plate (609) and the second striking plate (610) are attached to and slidably connected to the inner wall of the annular groove (608); Sliding grooves (607), the two sliding grooves (607) are respectively opened on both sides of the inner wall of the annular groove (608); The stroke grooves (611) are respectively formed in the corresponding first striking plate (609); The stroke rod (612) has one end connected to the bottom of the corresponding second striking plate (610), and the outer wall of the stroke rod (612) is slidably connected to the inner wall of the stroke groove (611).

3. The porous mold core structure and device for supercritical fluid foaming of recycled plastics according to claim 1, characterized in that, The striking device (6) further includes: The allowance groove (615) is provided on one side of the second striking plate (610), and a fixing groove is provided on one side of the allowance groove (615). The fixing rod (613) has an outer wall that is slidably connected to the inner wall of the fixing groove, and the other end of the fixing rod (613) is connected to one side of the inner wall of the annular groove (608). First spring (614), multiple first springs (614) are sleeved on the outside of corresponding fixed rods (613), and the two ends of the first spring (614) are respectively connected to one side of the allowance groove (615) and one side of the inner wall of the annular groove (608).

4. The porous mold core structure and device for supercritical fluid foaming of recycled plastics according to claim 2, characterized in that, The striking device (6) further includes: Sliding plates (606), one side of each of the two sliding plates (606) is connected to one side of the corresponding second striking plate (610), and the outer wall of the sliding plate (606) is slidably connected to the inner wall of the corresponding sliding groove (607); The connecting frame (604) has one side connected to the corresponding sliding plate (606), and the other side of the connecting frame (604) is connected to a contact plate (605). A protrusion (603) is provided between the two contact plates (605), and one side of the protrusion (603) is connected to the output shaft of the motor (601).

5. The porous mold core structure and device for supercritical fluid foaming of recycled plastics according to claim 1, characterized in that, The lower mold (2) is provided with a sealing device (7) at its top, and the sealing device (7) further includes: A sealing groove (702) is provided on the top of the lower mold (2), and a plurality of side grooves (710) are provided on the inner wall of the sealing groove (702), and sliding grooves (709) are provided on both sides of the inner wall of the side grooves (710). The sealing ring (701) has its outer wall attached to and slidably connected to the inner wall of the sealing groove (702), and the bottom of the sealing ring (701) has multiple bottom grooves (704), and the inner walls of the bottom grooves (704) have rotating grooves (703) on both sides.

6. The porous mold core structure and device for supercritical fluid foaming of recycled plastics according to claim 5, characterized in that, The sealing device (7) further includes: Top block (705), and hinge blocks (708) are connected to the bottom of the plurality of top blocks (705); A hinge plate (707) is provided, with the top of the hinge plate (707) hinged to one side of the corresponding hinge block (708), and sliders (706) are connected to both sides of the hinge plate (707). The outer wall of the slider (706) is slidably connected to the inner wall of the corresponding slide groove (709). Rotating blocks (711) are connected to both sides of the hinge plate (707), and the outer wall of the rotating block (711) is rotatably connected to the inner wall of the corresponding rotating groove (703).

7. The porous mold core structure and device for supercritical fluid foaming of recycled plastics according to claim 1, characterized in that, The lower mold (2) is equipped with a material handling device (8), which includes: An internal groove (815) is provided in the lower mold (2), and a sliding hole (807) is provided on one side of the inner wall of the internal groove (815). An inclined block (805) is connected to a connecting rod (806) on one side, and the outer wall of the connecting rod (806) is slidably connected to the inner wall of the sliding hole (807). The transmission frame (813) has one end of the connecting rod (806) connected to one side of the transmission frame (813), the bottom of the transmission frame (813) is attached to and slidably connected to the bottom of the inner wall of the built-in groove (815), and transmission grooves (814) are provided on both sides of the inner wall of the transmission frame (813). A connecting rod (801) is provided. One end of the connecting rod (801) is connected to one side of the upper mold (1), and a through groove (803) is provided in the connecting rod (801). An extrusion block (804) is rotatably connected to the inner wall of the through groove (803).

8. The porous mold core structure and device for supercritical fluid foaming of recycled plastics according to claim 7, characterized in that, The material handling device (8) further includes: The outer walls of the multiple transmission blocks (812) are slidably connected to the inner walls of the corresponding transmission grooves (814); Support plate (811), the outer wall of multiple support plates (811) is slidably connected to the inner wall of transmission frame (813), and one side of support plate (811) is connected to one side of corresponding transmission block (812); Support rods (808), the bottom of multiple support rods (808) are connected to the top of corresponding support plates (811), and the top of the support rods (808) is connected to abutment plates (802).

9. A porous mold core structure and device for supercritical fluid foaming of recycled plastics according to claim 8, characterized in that, The material handling device (8) further includes: Embedding groove (809), a plurality of said embedding grooves (809) are opened at the bottom of the inner wall of the lower mold (2), and the outer wall of the abutment plate (802) is in contact with the inner wall of the embedding groove (809); A connecting groove (810) is formed at the bottom of the embedded groove (809), and the other side of the connecting groove (810) is connected to one side of the built-in groove (815), and the inner wall of the connecting groove (810) is slidably connected to the outer wall of the support rod (808).

10. A porous mold core structure and device for supercritical fluid foaming of recycled plastics according to claim 7, characterized in that, The material handling device (8) further includes: Sliding sleeve seat (816), the two said sliding sleeve seats (816) are respectively connected to both sides of the transmission frame (813); The two slide rods (817) are slidably connected to the inner wall of the corresponding sliding sleeve seat (816) on their outer walls, and the two ends of the slide rods (817) are respectively connected to one side of the inner wall of the built-in groove (815). The outer wall of the slide rods (817) is fitted with a second spring (818), and the two ends of the second spring (818) are respectively connected to one side of the sliding sleeve seat (816) and one side of the inner wall of the built-in groove (815).

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